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noisedestroyers
2026-04-17 14:55:32 -04:00
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DataPRO/Modules/DatabaseImporter/DatabaseImport/.svn/pristine/d9/d9240866ee51d39ee588af710bc568ae0e85e563.svn-base Normal file
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using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Shapes;
using System.ComponentModel;
namespace DatabaseImport
{
public class RegionAdorner : Adorner, INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected bool SetProperty<T>(ref T storage, T value, string propertyName = null)
{
if (Equals(storage, value)) return false;
storage = value;
OnPropertyChanged(propertyName);
return true;
}
protected void OnPropertyChanged(string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
public Point GetUpperLeft()
{
var p = SelectRect.TopLeft;
var image = AdornedElement as Image;
if (null == image) { return p; }
var s = new Size(image.Source.Width, image.Source.Height);
var difX = s.Width - _MeasuredSize.Width;
var difY = s.Height - _MeasuredSize.Height;
var scaleX = difX / _MeasuredSize.Width;
var scaleY = difY / _MeasuredSize.Height;
p = new Point(p.X + p.X * scaleX, p.Y + p.Y * scaleY);
return p;
}
public Point GetLowerRight()
{
var p = SelectRect.BottomRight;
if (!(AdornedElement is Image image)) { return p; }
if (null == image.Source) { return new Point(0, 0); }
var s = new Size(image.Source.Width, image.Source.Height);
var difX = (s.Width - _MeasuredSize.Width);
var difY = s.Height - _MeasuredSize.Height;
var scaleX = difX / _MeasuredSize.Width;
var scaleY = difY / _MeasuredSize.Height;
p = new Point(p.X + p.X * scaleX, p.Y + p.Y * scaleY);
return p;
}
public delegate void RegionSelectedHandler(RegionAdorner r, MouseButtonEventArgs e);
public event RegionSelectedHandler OnRegionSelected;
private bool _bNew = true;
public bool IsNew
{
get => _bNew;
set
{
SetProperty(ref _bNew, value, "IsNew");
if (_bNew)
{
MyRegion.RegionAddVisibility = Visibility.Visible;
MyRegion.RegionDeleteVisibility = Visibility.Hidden;
}
else
{
MyRegion.RegionDeleteVisibility = Visibility.Visible;
MyRegion.RegionAddVisibility = Visibility.Hidden;
}
}
}
private Point _anchorPoint;
public Point AnchorPoint
{
get => _anchorPoint;
set => SetProperty(ref _anchorPoint, value, "AnchorPoint");
}
private readonly UIElement _adornedElement;
private readonly Path _path;
private Rect _selectRect;
public Rect SelectRect
{
get => _selectRect;
set
{
SetProperty(ref _selectRect, value, "SelectRect");
MyRegion.RegionUpperLeft = GetUpperLeft();
MyRegion.RegionBottomRight = GetLowerRight();
}
}
private readonly RectangleGeometry _geometry;
private Region _region;
public Region MyRegion
{
get => _region;
set => SetProperty(ref _region, value, "MyRegion");
}
public RegionAdorner(UIElement adornedElement, TestObjectTemplate template, Contexts context)
: base(adornedElement)
{
_region = new Region(this, template);
_adornedElement = adornedElement;
SelectRect = new Rect();
_geometry = new RectangleGeometry();
_path = new Path();
_path.Data = _geometry;
_path.StrokeThickness = 5;
_path.Stroke = Brushes.AliceBlue;
_path.Opacity = .6;
_path.Visibility = Visibility.Hidden;
MouseLeftButtonUp += Region_MouseLeftButtonUp;
MouseMove += Region_MouseMove;
MouseLeftButtonDown += Region_MouseLeftButtonDown;
_MeasuredSize = adornedElement.RenderSize;
//_region.PropertyChanged += _region_PropertyChanged;
Context = context;
}
private void Region_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
EndSelection(sender, e);
}
public enum Contexts { EditTestObject, EditTestObjectTemplate };
private Contexts _context;
public Contexts Context
{
get => _context;
set => SetProperty(ref _context, value, "Context");
}
void Region_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
OnRegionSelected?.Invoke(this, e);
}
private Size _MeasuredSize { get; set; }
private Point p1;
public void Region_MouseMove(object sender, MouseEventArgs e)
{
if (e.LeftButton != MouseButtonState.Pressed) return;
if (IsNew) { DrawSelection(sender, e, _adornedElement); }
else { MoveSelection(sender, e, _adornedElement); }
var layer = AdornerLayer.GetAdornerLayer(_adornedElement);
InvalidateVisual();
layer.InvalidateVisual();
}
public void DrawSelection(object sender, MouseEventArgs e, UIElement adornedElement)
{
if (e.LeftButton != MouseButtonState.Pressed) return;
var mousePosition = e.GetPosition(adornedElement);
var r = SelectRect;
r.X = mousePosition.X < AnchorPoint.X ? mousePosition.X : AnchorPoint.X;
r.Y = mousePosition.Y < AnchorPoint.Y ? mousePosition.Y : AnchorPoint.Y;
r.Width = Math.Abs(mousePosition.X - AnchorPoint.X);
r.Height = Math.Abs(mousePosition.Y - AnchorPoint.Y);
SelectRect = r;
_geometry.Rect = SelectRect;
}
public void MoveSelection(object sender, MouseEventArgs e, UIElement adornedElement)
{
if (e.LeftButton != MouseButtonState.Pressed) return;
var mousePosition = e.GetPosition(adornedElement);
var r = SelectRect;
r.X -= p1.X - mousePosition.X;
r.Y -= p1.Y - mousePosition.Y;
SelectRect = r;
p1 = mousePosition;
_geometry.Rect = SelectRect;
}
public delegate void EndSelectionHandler(RegionAdorner r);
public event EndSelectionHandler OnEndSelection;
public void EndSelection(object sender, MouseButtonEventArgs e)
{
ReleaseMouseCapture();
OnEndSelection?.Invoke(this);
}
}
}